49 lines
860 B
JavaScript
49 lines
860 B
JavaScript
import { Parser } from "./state";
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const pp = Parser.prototype;
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var STATE_KEYS = [
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"lastTokStartLoc",
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"lastTokEndLoc",
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"lastTokStart",
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"lastTokEnd",
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"lineStart",
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"startLoc",
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"curLine",
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"endLoc",
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"start",
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"pos",
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"end",
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"type",
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"value",
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"exprAllowed",
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"potentialArrowAt",
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"currLine",
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"input",
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"inType",
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"inFunction",
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"inGenerator",
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"labels"
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];
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pp.getState = function () {
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var state = {};
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for (var i = 0; i < STATE_KEYS.length; i++) {
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var key = STATE_KEYS[i];
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state[key] = this[key];
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}
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state.context = this.context.slice();
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state.labels = this.labels.slice();
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return state;
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};
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pp.lookahead = function () {
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var old = this.getState();
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this.isLookahead = true;
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this.next();
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this.isLookahead = false;
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var curr = this.getState();
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for (var key in old) this[key] = old[key];
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return curr;
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};
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